Containment Ventilation Flashcards

1
Q

What happens to containment ventilation on a containment isolation Phase A (CIA)?

A

CEQ Fans start,

CUV’s and instrument room vent fans stop

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2
Q

What happens to containment ventilation on a Containment Ventilation Isolation (CVI) signal?

A
These fans trip off and their containment isolation valves go close - Containment purge relief fan
Upper containment purge supply
Upper containment purge exhaust
Instrument room purge supply
Instrument room purge exhaust
Lower containment purge supply 
Lower containment purge exhaust
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3
Q

What happens to containment ventilation system on a Containment isolation B (CIB)?

A
These fans stop.
Pressurizer Enclosure fans
CRDM fans
Lower containment ventilation fans
Reactor cavity fans
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4
Q

What gives you a CVI?

A

High Radiation in upper or lower, SI, Phase A or B

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5
Q

What gives you a Phase A

A

1lb lower containment

MANUAL

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6
Q

What gives you a Phase B?

A

Lower containment High pressure 2.8lb

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7
Q

What drains into the containment vent unit drain pot?

A

CUV
CLV
Interment room vent fans.

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